function ajax_request(url) {
	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest && !(window.ActiveXObject)) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
	if(req) {
		req.open("GET", url, false);
		req.send("");
		return req.responseText;
	}else{
		return null;
	}
}

function ajax_load_to(url,elementId) {
	html = ajax_request(url);
	document.getElementById(elementId).innerHTML = html != null ? html : '';
}